Instruments
Zahn Cups

BGD 126 Zahn Cups can be used to quickly measure the viscosity of liquids such as Paint, Ink, Varnishes, Syrup and Oil. They are produced according with ASTM D 816, ASTM D 1084,and ASM D 4212. The Stainless Steel Cups are molded precisely and the orifices are precision drilled using high-speed CNC drilling.

 Each cup has a 12-inch loop handle to allow the cup to be dipped by hand into a liquid container.  At the center of this handle is a finger-ring for holding the cup in a vertical position during use. Their orifice diameters are set at the factory for appropriate results with applicable NIST traceable Newtonian oils.

It is done by filling up the volume of Zahn Cup with the required liquid and then placing an index finger over the orifice to stop any flow out of the liquid. A ring at the Zahn Cup handle allows the cup to be hanged perpendicularlystill with the finger stopping any liquid flow out). Prepare a Digital stopwatch and set zero. Immediately start the stopwatch when the finger is released. As soon as there is a first “break” of the flow, stop the stopwatch. The second shown is the time of the liquid flow, which is also the flow viscosity of that liquid.

Every Biuged’s Zahn cup has its own coefficient “K”, which is marked on the cup body.

Fact Viscosity=Testing viscosity×K

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Main Technical Parameters

 Volume of Cup43ml49ml

 Length of Handle40mm±0.1mm

 Height of Cup58mm±0.1mm
 Measurement Temperature25±1

Come with calibration certificate 

 Details of each Zahn Cups


Details/Zahn cup


Zahn Cup No.1

Zahn Cup No.2

Zahn Cup No.3

Zahn Cup No.4

Zahn Cup No.5

Orifice

mm/inches

1.98/0.08

2.74/0.11

3.76/0.15

4.27/0.17

5.28/0.21

Flow time Range 

  (sec

33.5-80

20-80

20-75

20-80

20-80

Measurement Range

  (cSt

5-56

21-231

146-848

222-1110

460-1840

Applications

Thin-bodied materials


Clears, lacquers,enamels,press-side adjustment of flexographic inks


Manufacturing of flexographic inks

More viscous paints and inks

Silk screen inks

                               Ordering Information


BGD 126/1

BGD 126/2

BGD 126/3

BGD 126/4

BGD 126/5

NOTE

1. Both the Zahn Cups and the Iwata Cup are based on measuring the Flow of liquid in seconds. Hence, a precision stopwatch is required.

2. The orifice diameter of Zahn cup may be a little different from standard requirements due to some uncontrollable factors during manufacturing process.But we ensure the flow time conforms to standards.

 

Results should be reported in Zahn-Seconds at a specified temperature for a particular cup. To convert Zahn-Seconds to centistokes, refer to ASTM D4212, D816, and D1084.

Centistokes ×Specific Gravity= Centipoise

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Biuged Precise Instruments (Guangzhou) Co.,Ltd

AddNO.15, Fuzhong Rd., Zhongxin Town, 

Zengcheng District, Guangzhou.China

Tel+86-20-32955999;+86-20-32955820

Fax+86-20-32955819 

E-mailjack@biuged.com

Website http://www.biuged.com 


Biuged Instruments Co.,Ltd.

Add:RM.310, NO.1, Sicheng Rd.,
Tianhe District, Guangzhou.China

Tel:+86-20-82169666

Fax:+86-20-32955818

E-mail:jack@biuged.com





Biuged Precise Instruments (Shanghai) Co.,Ltd

Add:Room 906, 9th Floor, Zhongcai Industrial Park, No.1111 Zhu Feng Road, Qingpu District, Shanghai, China

Tel:+86-21-59240298

Fax:+86-21-59249719

E-mail:xjx@biuged.com

  Biuged Laboratory Instruments (Guangzhou) Co., Ltd.   Guangdong ICP record number:11044672